Gaya APA

Phyiscal Geolgy. (0000). ~: ~.

Gaya Chicago

Phyiscal Geolgy. ~. ~: ~, 0000. Buku.

Gaya MLA

Phyiscal Geolgy. ~. ~: ~, 0000. Buku.

Gaya Turabian

Phyiscal Geolgy. ~: ~, 0000. Buku.